Modify JW Player so it supports multiple subtitles

I'd like to modify the open source Flash media player, JW Player, so that you can pick a subtitle from a list of available ones. This is so that a person can view the video in their own language. Basically, JW Player should grab language lists from a server, display the list inside the player and allow person to pick a subtitle of their choice. You can see stuff I'd like done running on dotsub.com. After they pick a subtitle, subtitle will be loaded from a server.

More detail:

JW Player documentation:

[url removed, login to view]

This page says that to load up an individual subtitle through JS, you need to use a special function to reload the FLV file as well. That's pretty bad for usability since when you switch or instruct player to switch XML file, you'll waste bandwidth reloading the files and position will be reset. Create a ActionScript function so that we can:

1) Instruct JWPlayer to load up subtitle list

2) Instruct JWPlayer to load up individual subtitles from XML

3) Make it available through JavaScript so that we can call this function from JavaScript.